Add a config-option which forces the console to stay silent until the
proper environment is loaded from flash.
This is important when the default environment does not silence the
console but no output must be printed when 'silent' is set in the flash
environment.
After the environment from flash is loaded, the console will be
silenced/unsilenced depending on it. If PRE_CONSOLE_BUFFER is also
used, the buffer will now be flushed if the console should not be
silenced.
Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
We use the parameter file in console functions to choose from an array
after checking against MAX_FILES but we never check if the value of file
is negative.
Running ./u-boot -T -l and issuing the poweroff command has resulted in
crashes because os_exit() results in std::ostream::flush() calling U-Boot's
fflush with file being a pointer which when converted to int may be
represented by a negative number.
This shows that checking against MAX_FILES is not enough. We have to ensure
that the file argument is always positive.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Like in all other console functions, implement also serial_flush() function
as a fallback int console flush() function.
Flush support is available only when config option CONSOLE_FLUSH_SUPPORT is
enabled. So when it is disabled then provides just empty static inline
function serial_flush().
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
On certain places it is required to flush output print buffers to ensure
that text strings were sent to console or serial devices. For example when
printing message that U-Boot is going to boot kernel or when U-Boot is
going to change baudrate of terminal device.
Therefore introduce a new flush() and fflush() functions into console code.
These functions will call .flush callback of associated stdio_dev device.
As this function may increase U-Boot side, allow to compile U-Boot without
this function. For this purpose there is a new config CONSOLE_FLUSH_SUPPORT
which is enabled by default and can be disabled. It is a good idea to have
this option enabled for all boards which have enough space for it.
When option is disabled when U-Boot defines just empty static inline
function fflush() to avoid ifdefs in other code.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
I do not have any non-serial output devices, so a
print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL)
does nothing for me.
However, I was manually inspected the pre-console buffer using md.b,
and I noticed that the early part of it was repeated. The reason is
that the first call of print_pre_console_buffer(), from
console_init_f(), ends up invoking puts() with the contents of the
buffer at that point, and puts() at that point ends up in the else
branch of
if (gd->flags & GD_FLG_DEVINIT) {
/* Send to the standard output */
fputs(stdout, s);
} else {
/* Send directly to the handler */
pre_console_puts(s);
serial_puts(s);
}
so indeed the contents is added again.
That can be somewhat confusing (both when reading the buffer manually,
but also if it did actually come out on some device). So disable all
use of the pre-console buffer while print_pre_console_buffer() is
emitting it.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
There is currently no support for PRE_CONSOLE_BUFFER in SPL, but if
and when that gets implemented, one would almost certainly want to use
a different address and/or size for the buffer (e.g., U-Boot proper
might specify an address in DRAM and a generous buffer, while SPL
would be much more constrained).
So a prerequisite for adding SPL_PRE_CONSOLE_BUFFER is to make the
code use SPL_-specific values. No functional change.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
The video driver uses this for debugging, but if used before relocation it
crashes at present. Avoid trying to output debugging before the console is
ready.
Signed-off-by: Simon Glass <sjg@chromium.org>
Before relocation there is generally not as much available memory and not
that much console output. At present the console-output buffer is the same
side before and after relocation. Add a separate Kconfig option to remove
this limitation.
Signed-off-by: Simon Glass <sjg@chromium.org>
This adds tests for the crypt-based and plain SHA256-based password hashing
algorithms in the autoboot flow.
Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
If the console output buffer is exhausted, characters are silently dropped
from the end. Detect this condition and report an error when reading back
the characters.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is not only less lines of code, but also better readability
when new macro is being in use. Introduce for_each_console_dev()
helper macro and convert current users to it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Logical continuation of the change that brought console_devices_set() is
to unify console_setfile() with it and replace in the callers.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
console_devices_set() missed the console device counter to be set correctly.
Fixes: 45375adc97 ("console: add function console_devices_set")
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Remove the #if 0 present since the first version of console.c
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Rename search_device() to console_search_dev() since it's in console.h.
Suggested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
There is no need to call ->start() for already started device. All the same,
there is no need to call ->stop() for devices still in use.
For now enforce this only for IOMUX case.
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
In the future we would like to stop unused consoles and
also add a reference counting to avoid imbalanced calls
to ->start() and ->stop() in some cases.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add the helper function console_has_tstc() and replace the test
#if CONFIG_IS_ENABLED(CONSOLE_MUX) to a simple 'if' test to
respect the U-Boot coding rule.
No functional change.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add helper functions to access to gd->console_out and gd->console_in
with membuff API and replace the #ifdef CONFIG_CONSOLE_RECORD test
by if (IS_ENABLED(CONFIG_CONSOLE_RECORD)) to respect the U-Boot
coding rule.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add a new function to access to console_devices only defined if
CONFIG_IS_ENABLED(CONSOLE_MUX).
This path allows to remove #if CONFIG_IS_ENABLED(CONSOLE_MUX)
in console_getc function.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Remove #ifdef or #ifndef for CONFIG when it is possible to simplify
the console.c code and respect the U-Boot coding rules.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Allow to record the console output before before U-Boot
has a console ready.
This patch allows to test the console output in sandbox test
based on console record.
It is possible because GD_FLG_RECORD and GD_FLG_SERIAL_READY
are 2 independent flags.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reorder test on gd value and remove the duplicated test (!gd)
in putc and puts function.
This patch is a preliminary step for rework of this function.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The sandbox is built with the SDL2 library with invokes the X11 library
which in turn calls getc(). But getc() in glibc is defined as
int getc(FILE *)
This does not match our definition.
int getc(void)
The sandbox crashes when called with parameter -l.
Rename our library symbol getc() to getchar().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
On boards without console recording these function are currently missing.
It is more convenient for them to be present but to return dummy values.
That way if we know that a test needs recording, we can check if it is
available, and skip the test if not, while avoiding #ifdefs.
Update the header file according and adjust console_record_reset_enable()
to return an error if recording is not available.
Signed-off-by: Simon Glass <sjg@chromium.org>
In the video drivers it is useful to print errors while debugging but
doing so risks an infinite loop as the debugging info itself may go
through the video drivers.
Add a new console function that prints information only to the serial
device, thus making it safe for use in debugging.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This patch restores CONFIG_VIDCONSOLE_AS_LCD as boolean
and introduce a separate sting as CONFIG_VIDCONSOLE_AS_NAME
to search this string in stdout used as videoconsole.
This patch avoid issue with board defconfig or code expecting
CONFIG_VIDCONSOLE_AS_LCD as boolean.
Fixes: 22b897a123 ("video: extend stdout video console work-around for 'vga'")
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
cfb_console driver uses 'vga' console name and we still have board
environments defining this name. Re-use existing DM_VIDEO work-
around for console name to support 'vga' name in stdout environment.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Soeren Moch <smoch@web.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Avoid errors of like
common/console.c: In function ‘console_record_reset’:
common/console.c:615:16: error: passing argument 1 of ‘membuff_purge’
discards ‘volatile’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
615 | membuff_purge(&gd->console_out);
| ^~~~~~~~~~~~~~~~
by casting to non-volatile.
The volatile property stems from declarations like
arch/arm/include/asm/global_data.h:114:
But there is no need to treat gd->console_out and gd->console_in as
volatile in the context of common/console.c.
Fixes: b612312816 ("console: Add a function to read a line of the output / eof")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
When recording the console output for testing it is useful to be able to
read the output a line at a time to check that the output is correct. Also
we need to check that we get to the end of the output.
Add a console function to return the next line and another to see how must
data is left.
Signed-off-by: Simon Glass <sjg@chromium.org>
Newer versions of LLVM-7 will provide an unused function warning over
console_doenv() in the case of SYS_CONSOLE_IS_IN_ENV not being enabled
as can be the case in SPL. Add guards around this function.
Signed-off-by: Tom Rini <trini@konsulko.com>
This file contains lots of internal details about the environment. Most
code can include env.h instead, calling the functions there as needed.
Rename this file and add a comment at the top to indicate its internal
nature.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
[trini: Fixup apalis-tk1.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
Avoid to flush buffer when silent console is activated as the
console can be reactivate later, after relocation, when the env will
be updated with the saved one.
Solve issue (missing beginning of U-Boot trace) when:
- CONFIG_SILENT_CONSOLE is activated
- silent=1 is defined in default environment (CONFIG_EXTRA_ENV_SETTINGS)
- silent is removed in saved environment with:
> env delete silent; env save
Only functional when PRE_CONSOLE_BUFFER is activated.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Update the "silent" property with the variable "silent" get from
saved environment, it solves the issue when:
- CONFIG_SILENT_CONSOLE and CONFIG_SYS_CONSOLE_IS_IN_ENV are activated
- silent is not defined in default environment
- silent is requested in saved environment with:
> env set silent 1; env save
On next reboot the console is not disabled as expected after relocation
and the environment load from flash (the callback is not called when
the INSERT is requested in the created hash table)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
We support putc() in this case but not puts(), but this is more useful
since it is what printf() uses.
This particularly affects debugging early in SPL, where currently printf()
statements result in no output. Fix this by adding a special case into
puts() for sandbox, just like putc().
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Unify the fgetc function when MUX is activated or not:
- always call tstc() : it is the normal behavior expected
by serial uclass (call tstc then getc) and that avoids
issue when SERIAL_RX_BUFFER is activated
- reload WATCHDOG in the char waiting loop
This patch allow to have the same behavior when CONSOLE_MUX is activated
or not and avoid regression when this feature is deactivated.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
In raw mode, handle ctrl-c as normal. This allows normal ctrl-c behavior
such as aborting a command that is timing out without completely
terminating the sandbox executable.
In [1], Simon disabled this. His reason for it was that it interferes
with piping test scripts. Piping should be done in cooked mode, so this
change should still not interfere.
[1] commit 8969ea3e9f ("sandbox: Disable Ctrl-C")
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
We don't necessarily want to re-enable ctrl-c if it was already disabled
when calling tstc().
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Both putc() and puts() can be called before global_data is set up. Some of
the code paths don't handle this correctly. Add an explicit test before
any member is accessed.
Reported-by: Coverity (CID: 169030)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
With tighter build flags the fact that <stdio_dev.h> doesn't have a
reference back to MAX_NAMES causes an error. Include <stdio.h> here and
then in common/console.c use MAX_NAMES rather than 3 when working with
stdio_names.
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
